JPH09249632A5 - - Google Patents

Info

Publication number
JPH09249632A5
JPH09249632A5 JP1997076714A JP7671497A JPH09249632A5 JP H09249632 A5 JPH09249632 A5 JP H09249632A5 JP 1997076714 A JP1997076714 A JP 1997076714A JP 7671497 A JP7671497 A JP 7671497A JP H09249632 A5 JPH09249632 A5 JP H09249632A5
Authority
JP
Japan
Prior art keywords
zone
reaction
boiling
evaporator
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1997076714A
Other languages
English (en)
Japanese (ja)
Other versions
JPH09249632A (ja
JP4031550B2 (ja
Filing date
Publication date
Priority claimed from DE19618828A external-priority patent/DE19618828A1/de
Application filed filed Critical
Publication of JPH09249632A publication Critical patent/JPH09249632A/ja
Publication of JPH09249632A5 publication Critical patent/JPH09249632A5/ja
Application granted granted Critical
Publication of JP4031550B2 publication Critical patent/JP4031550B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP07671497A 1996-03-15 1997-03-13 カルバミン酸エステルを熱分解する方法 Expired - Fee Related JP4031550B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19610261 1996-03-15
DE19610261.8 1996-03-15
DE19618828.8 1996-05-10
DE19618828A DE19618828A1 (de) 1996-05-10 1996-05-10 Verwendung von hochsiedenden Lösemitteln bzw. -gemischen als Wärmetauschmedium für die thermische Spaltung von Carbamidsäureestern

Publications (3)

Publication Number Publication Date
JPH09249632A JPH09249632A (ja) 1997-09-22
JPH09249632A5 true JPH09249632A5 (enExample) 2005-02-10
JP4031550B2 JP4031550B2 (ja) 2008-01-09

Family

ID=26023837

Family Applications (2)

Application Number Title Priority Date Filing Date
JP07671497A Expired - Fee Related JP4031550B2 (ja) 1996-03-15 1997-03-13 カルバミン酸エステルを熱分解する方法
JP07671597A Expired - Fee Related JP4031551B2 (ja) 1996-03-15 1997-03-13 カルバミド酸エステルを熱分解するための熱交換媒体

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP07671597A Expired - Fee Related JP4031551B2 (ja) 1996-03-15 1997-03-13 カルバミド酸エステルを熱分解するための熱交換媒体

Country Status (6)

Country Link
US (2) US5731458A (enExample)
EP (2) EP0795543B1 (enExample)
JP (2) JP4031550B2 (enExample)
CA (2) CA2199919A1 (enExample)
DE (2) DE59705127D1 (enExample)
ES (2) ES2166922T3 (enExample)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008396A (en) * 1997-04-11 1999-12-28 Osi Specialties, Inc. Hot oil process for producing isocyanato organosilanes
US6350927B2 (en) 1997-05-09 2002-02-26 The Dow Chemical Company Thermal fluid blends containing 1,2,3,4-tetrahydro (1-phenylethyl)naphthalene
CA2289014C (en) * 1997-05-09 2006-09-19 The Dow Chemical Company Thermal fluid blends containing 1,2,3,4-tetrahydro(1-phenylethyl)naphthalene
DE19813107A1 (de) 1998-03-25 1999-09-30 Basf Ag Verfahren zur Herstellung von Polyurethanschaumstoffen
ES2245685T3 (es) 2000-02-29 2006-01-16 Huntsman International Llc Procedimiento para la preparacion de poliisocianatos organicos.
SG115512A1 (en) 2001-12-28 2005-10-28 Mitsui Takeda Chemicals Inc Method for producing carbamates and method for producing isocyanates
US8053595B2 (en) * 2006-11-17 2011-11-08 Asahi Kasei Chemicals Corporation Process for producing isocyanates
TW200844080A (en) * 2007-01-11 2008-11-16 Asahi Kasei Chemicals Corp Process for producing isocyanate
CA2682512C (en) * 2007-03-30 2012-03-06 Asahi Kasei Chemicals Corporation Isocyanate production process using composition containing carbamic acid ester and aromatic hydroxy compound, and composition for transfer and storage of carbamic acid ester
BRPI0822695B1 (pt) * 2008-05-15 2017-05-02 Asahi Kasei Chemicals Corp processo para produzir um isocianato
WO2009139062A1 (ja) * 2008-05-15 2009-11-19 旭化成ケミカルズ株式会社 イソシアネートの製造方法
JP5731530B2 (ja) 2009-12-01 2015-06-10 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ カルバメートの熱的開裂によるイソシアネートの製造方法
US8835673B2 (en) 2009-12-04 2014-09-16 Basf Se Process for preparing isocyanates
HUE028076T2 (en) 2010-01-19 2016-11-28 Basf Se Process for the preparation of isocyanates by thermal cleavage of carbamates
US8680323B2 (en) 2010-01-19 2014-03-25 Basf Se Process for preparing isocyanates by thermal dissociation of carbamates
US20110313192A1 (en) 2010-06-22 2011-12-22 Basf Se Heterogeneously catalyzed carbamate dissociation for synthesis of isocyanates over solid lewis acids
BR112013002616B1 (pt) 2010-10-04 2018-11-27 Asahi Kasei Chemicals Corporation métodos para separar, com uma coluna de destilação de múltiplos estágios, uma mistura contendo um composto contendo hidrogênio ativo (a) e um composto (b), e, para produzir um isocianato
CN102653517A (zh) * 2011-03-02 2012-09-05 中国科学院过程工程研究所 一种由氨基甲酸酯制备异氰酸酯的方法
JP5700595B2 (ja) 2012-01-25 2015-04-15 旭化成ケミカルズ株式会社 分離方法
JP5650777B2 (ja) * 2013-03-11 2015-01-07 旭化成ケミカルズ株式会社 炭酸ジアリールを用いるイソシアネートの製造方法
EP3169690B1 (en) 2014-07-14 2018-12-05 Momentive Performance Materials Inc. Process for producing low-color and color-stable isocyanatoorganosilanes and products derived therefrom
WO2016156188A1 (de) 2015-03-31 2016-10-06 Basf Se Verfahren zur herstellung von isocyanaten durch carbamatspaltung
CN110546135B (zh) 2017-05-15 2021-12-14 旭化成株式会社 异氰酸酯的制造方法
CN112513054A (zh) * 2018-07-13 2021-03-16 莫门蒂夫性能材料股份有限公司 异氰酸酯基硅烷的制备
CN111303373B (zh) * 2020-02-25 2022-07-12 万华化学集团股份有限公司 一种低色度脲基甲酸酯组合物及其制备方法和应用
CN116177484A (zh) * 2023-03-04 2023-05-30 福州大学 一种液体有机氢载体全氢苄基甲苯的反应精馏脱氢工艺

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734941A (en) * 1968-09-06 1973-05-22 American Cyanamid Co Process for converting urethanes to isocyanates
US3870739A (en) * 1973-03-05 1975-03-11 Air Prod & Chem Isocyanates from urethanes
US3919278A (en) * 1974-06-13 1975-11-11 Atlantic Richfield Co Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids
DE2942543A1 (de) * 1979-10-20 1981-05-07 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von arylisocyanaten durch thermische spaltung von arylurethanen
DE3047898A1 (de) * 1980-12-19 1982-07-15 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern und die verwendung von hierbei anfallenden isocyanate und carbamidsaeureester aufweisenden gemischen zur herstellung von isocyanaten
DE3108990A1 (de) * 1981-03-10 1982-09-23 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von polyisocyanaten
DE3142627A1 (de) * 1981-10-28 1983-05-05 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von isocyanaten durch thermische spaltung von urethanen
DE3215591A1 (de) * 1982-04-27 1983-10-27 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern
DE3362121D1 (en) * 1982-07-24 1986-03-27 Basf Ag Process for the preparation of hexamethylene diisocyanate-1,6 and/or of the isomeric diisocyanates with 6 carbon atoms in the alkyl group
DE3314788A1 (de) * 1983-04-23 1984-10-25 Basf Ag, 6700 Ludwigshafen Mehrstufenverfahren zur herstellung von hexamethylendiisocyanat-1,6 und/oder isomeren aliphatischen diisocyanaten mit 6 kohlenstoffatomen im alkylenrest
DE3314790A1 (de) * 1983-04-23 1984-10-25 Basf Ag, 6700 Ludwigshafen Mehrstufenverfahren zur herstellung von 3-isocyanatomethyl-3,5,5-trimethyl-cyclohexylisocyanat
US4599401A (en) * 1983-10-27 1986-07-08 Union Carbide Corporation Low viscosity adducts of poly(active hydrogen) organic compounds and a polyepoxide
DE3339300A1 (de) * 1983-10-29 1985-05-09 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von isocyanaten durch thermische spaltung von urethanen
DE3632010A1 (de) * 1986-09-20 1988-04-07 Basf Ag Neue 2-(alkoxymethyl)-pentan-1,5-diisocyanate, -diurethane und -dicarbamidsaeurechloride, verfahren zu ihrer herstellung und deren verwendung
WO1988005430A1 (fr) * 1987-01-13 1988-07-28 Daicel Chemical Industries, Ltd. Procede de preparation de composes d'isocyanate
DE3828033A1 (de) * 1988-08-18 1990-03-08 Huels Chemische Werke Ag Kreislaufverfahren zur herstellung von (cyclo)aliphatischen diisocyanaten
DE3915181A1 (de) * 1989-05-10 1990-11-15 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4010226A1 (de) * 1990-03-30 1991-10-02 Basf Ag Neue 2,2-dialkylpentan-1,5-diisocyanate, -diurethane und -dicarbamidsaeurechloride, verfahren zu ihrer herstellung und ihre verwendung
DE4124671A1 (de) * 1991-07-25 1993-01-28 Basf Ag Reaktor und verfahren zur thermischen spaltung von carbamidsaeureestern
DE4137428A1 (de) * 1991-11-14 1993-05-19 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4213099A1 (de) * 1992-04-21 1993-10-28 Basf Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von organischen Polyisocyanaten
DE4231417A1 (de) * 1992-05-05 1993-11-11 Huels Chemische Werke Ag Kontinuierliches mehrstufiges Verfahren zur Herstellung von (cyclo)aliphatischen Diisocyanaten
DE4413580A1 (de) * 1994-04-19 1995-10-26 Bayer Ag Verfahren zur Herstellung von 1,4-Diisocyanatobutan (BDI)

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